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Official Description

Probing of lacrimal canaliculi, with or without irrigation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 68840 involves the probing of the lacrimal canaliculi, which are small mucosal ducts located at the inner corner of the eye. These ducts play a crucial role in the drainage of tears from the eye into the nasal cavity. Each eye contains two canaliculi: the superior canaliculus, associated with the upper eyelid, and the inferior canaliculus, linked to the lower eyelid. During this procedure, a local anesthetic is typically administered to ensure patient comfort. The punctum, which is the opening of the canaliculus, is then dilated to facilitate the insertion of a probe. This probe is carefully passed through the punctum into either the superior or inferior canaliculus, or both, depending on the clinical need. Once the canaliculi are accessed, they may be cannulated, which involves inserting a small tube to allow for the flushing of the ducts with an irrigation solution. This process can help clear any blockages or obstructions, ensuring proper tear drainage and alleviating symptoms associated with lacrimal duct dysfunction.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The probing of lacrimal canaliculi, as described by CPT® Code 68840, is indicated for various conditions related to tear drainage dysfunction. The following are common indications for this procedure:

  • Obstruction of the lacrimal canaliculi - This condition can lead to excessive tearing or chronic eye infections due to the inability of tears to drain properly.
  • Chronic dacryocystitis - Inflammation of the lacrimal sac, often associated with blockage, which can cause pain and swelling.
  • Epiphora - A condition characterized by excessive tearing, often resulting from blocked tear ducts.
  • Congenital lacrimal duct obstruction - A condition present at birth where the tear ducts do not open properly, leading to tear drainage issues.

2. Procedure

The procedure for probing the lacrimal canaliculi involves several key steps that ensure effective treatment of the identified condition. The following outlines the procedural steps:

  • Step 1: Administration of Local Anesthetic - Prior to the procedure, a local anesthetic is administered to the patient to minimize discomfort during the probing process. This is crucial for patient comfort and cooperation.
  • Step 2: Dilation of the Punctum - The punctum, which is the small opening of the canaliculus, is then dilated. This is typically done using a specialized instrument designed to gently widen the opening, allowing for easier access to the canaliculus.
  • Step 3: Insertion of the Probe - A probe is carefully inserted through the dilated punctum into the superior and/or inferior canaliculus. The probe is designed to navigate through the canaliculus, allowing the physician to assess the patency of the duct.
  • Step 4: Cannulation and Irrigation - Once the canaliculus is accessed, it may be cannulated, which involves placing a small tube into the duct. This step is often followed by flushing the canaliculus with an irrigation solution to clear any obstructions or debris that may be present, facilitating proper tear drainage.

3. Post-Procedure

After the probing of the lacrimal canaliculi, patients may experience some mild discomfort or irritation in the eye area, which is typically temporary. It is important for patients to follow any post-procedure care instructions provided by their healthcare provider. This may include the use of prescribed eye drops to reduce inflammation or prevent infection. Patients are usually advised to avoid rubbing their eyes and to monitor for any signs of complications, such as increased redness, swelling, or discharge. Follow-up appointments may be scheduled to assess the effectiveness of the procedure and ensure that the canaliculi remain patent.

Short Descr EXPLORE/IRRIGATE TEAR DUCTS
Medium Descr PROBE LACRIMAL CANALICULI W/WO IRRIGATION
Long Descr Probing of lacrimal canaliculi, with or without irrigation
Status Code Active Code
Global Days 010 - Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Multiple Reduction Applies
ASC Payment Indicator Office-based surgical procedure added to ASC list in CY 2008 or later with MPFS nonfacility PE RVUs; payment based on MPFS nonfacility PE RVUs.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
MUE 1
CCS Clinical Classification 19 - Other therapeutic procedures on eyelids, conjunctiva, cornea
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
E2 Lower left, eyelid
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
E4 Lower right, eyelid
E1 Upper left, eyelid
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 to the usual procedure number.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CR Catastrophe/disaster related
E3 Upper right, eyelid
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
SG Ambulatory surgical center (asc) facility service
X2 Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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